Ryazanov Aleksandr
From Samara, Russia
EMA: 15990057
Internal rating (RR)
Rating date May 24, 2026 (latest changes May 17, 2026).
168 place (253.00).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.45 * 1 + 3.40 * 1) = 14.85
p1 = (569.62 * 3.65 * 0.29 + 719.10 * 3.75 * 0.43 + 23.81 * 2.60 * 0.71 + 314.29 * 3.50 * 0.86 + 0) / (3.65 * 0.29 + 3.75 * 0.43 + 2.60 * 0.71 + 3.50 * 0.86 + 1) = 321.70949273458535
p2 = (719.10 * 3.75 * 0.43 + 314.29 * 3.50 * 0.86 + 569.62 * 3.65 * 0.29 + 23.81 * 2.60 * 0.71) / max_coefficients = 184.2969696969697
score = 321.70949273458535 * 0.5 + 184.2969696969697 * 0.5 = 253.00323121577753
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-05-17 | 166 -> 168 | 253.00 | |
| 2026-05-12 | 174 -> 166 | 253.00 | |
| 2026-05-03 | 165 -> 174 | 257.44 -> 253.00 |
Riichi over The Volga 2025: 100% -> 86% |
| 2026-05-01 | 169 -> 165 | 257.44 | |
| 2026-04-19 | 165 -> 169 | 257.44 | |
| 2026-04-16 | 166 -> 165 | 257.44 | |
| 2026-04-13 | 159 -> 166 | 281.48 -> 257.44 |
Moscow Riichi 2024: 57% -> 43% |
| 2026-04-11 | 156 -> 159 | 281.48 | |
| 2026-04-05 | 152 -> 156 | 281.48 | |
| 2026-04-04 | 145 -> 152 | 297.27 -> 281.48 |
Riichi over Volga: 43% -> 29% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 314 |
|
49/71 | 86% | 3.50 | RR | Riichi over The Volga 2025 | Samara | |
| 2 | 24 |
|
42/43 | 71% | 2.60 | RR | Riichi On Ice | Samara | |
| 3 | 719 |
|
26/90 | 43% | 3.75 | RR | Moscow Riichi 2024 | Moscow | |
| 4 | 570 |
|
35/80 | 29% | 3.65 | RR | Riichi over Volga | Samara | |
| 5 | 486 |
|
19/36 | 0% | 0.90 | EMA | Moscow Riichi 2011 | Moscow |